ITS along the Road

Electronic signs

Along roads, mainly on approaches to main cities, there are signs that provide information about possible accidents or if there is a risk for queuing. Some signs are used to direct and control traffic if this is necessary. There are signs along the roads that show road surface and air temperature. Trials are also in progress to warn motorists if wildlife is approaching the road.

Variable speed limits

Speed signs that change the highest permitted speed limit depending on the condition of the road, the number of cars on the road, visibility etc are being tested at several locations in Sweden. The trial is in part to show that the motivation to maintain speed limits increases when speed limits are based on prevailing conditions.

Finding an available parking space

There are signs in many cities and towns that indicate how many parking spaces are available in a specific part of town.

Automatic speed surveillance

Automatic speed surveillance has proven to be a good method to reduce speeds, increase road safety and reduce environmental impact. Seven of ten motorists approve of the system.

Smart traffic signals

Some traffic signals can manage traffic to minimize queues. This flow is based on how the traffic situation is at that time. Smart traffic signals can also prioritise public transport and emergency services at a junction and make it easier for pedestrians to cross a busy street.

Trials using congestion charges

A congestion charges trial is to take place in Stockholm to study congestion charges in practice and public opinion about the charges. The aim of the charges is to increase accessibility and improve the environment. Registration and payment will take place electronically without affecting traffic flow.

Local ITS

Local problems need local solutions. Local ITS systems can solve many traffical problems instead of expensive physical installations. Only the imagination is the limit. View one of our films on the subject, see the column to the right.